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physics.atom-ph2018
Excitation of positronium from 2S to 20P state
M. W. Heiss, G. Wichmann, B. Radics +1
We report the observation of positronium excitation from the 2S to the 20P state. The Rydberg positronium atoms fly a distance of 40 mm before being field ionized and detected in a…
physics.atom-ph2018
The positronium hyperfine structure: Progress towards a direct measurement of the transition in vacuum
M. Heiss, G. Wichmann, A. Rubbia +1
We present the current status for the direct measurement of the positronium hyperfine structure using the $\text{2}^\text{3}\text{S}_\text{1} \rightarrow \text{2}^\text{1}\text{S}_…